Poussières laissées par la comète de Halley, que la Terre traverse chaque printemps. Depuis la France, on l'observe bas sur l'horizon, dans la dernière heure avant l'aube.
Maximum attendu la nuit du 5 au 6 mai · jusqu'à 50 météores par heure · radiant dans le Verseau, regarder vers l'est, avant l'aube · poussières de la comète de Halley.
Prochain rendez-vous céleste : Maximum des Delta Aquarides, le 30 juillet (jusqu'à 25 météores par heure) — dans 88 jours
Shrouded in a thick atmosphere, the surface of Saturn's largest moon, Titan, is really hard to see. Small particles suspended in Titan's upper atmosphere cause an almost impenetrable haze, strongly scattering light at visible wavelengths and hiding surface features from prying eyes. Still, Titan's surface is better imaged at infrared wavelengths, where scattering is weaker and atmospheric absorption is reduced. Arrayed around this visible light image (center) of Titan are some of the clearest global infrared views of the tantalizing moon so far. In false color, the six panels present a consistent processing of 13 years of infrared image data from the Visual and Infrared Mapping Spectrometer (VIMS) on board the Cassini spacecraft orbiting Saturn from 2004 to 2017. They offer a stunning comparison with Cassini's visible light view. NASA's revolutionary rotorcraft mission to Titan's surface is due to launch no earlier than July, 2028.